Apply suggestions from code review

Address reviewiew comments

Co-authored-by: Tony Torralba <atorralba@users.noreply.github.com>

Author: mbaluda

java/ql/lib/ext/org.apache.commons.io.model.yml

@@ -29,9 +29,10 @@ extensions:
       - ["org.apache.commons.io", "FileUtils", True, "copyToFile", "(InputStream,File)", "", "Argument[0]", "file-content-store", "ai-manual"]
       - ["org.apache.commons.io", "FileUtils", True, "copyToFile", "(InputStream,File)", "", "Argument[1]", "path-injection", "manual"]
       - ["org.apache.commons.io", "FileUtils", True, "openInputStream", "(File)", "", "Argument[0]", "path-injection", "ai-manual"]
+      - ["org.apache.commons.io", "FileUtils", True, "delete", "(File)", "", "Argument[0]", "path-injection", "manual"]
       - ["org.apache.commons.io", "FileUtils", True, "deleteDirectory", "(File)", "", "Argument[0]", "path-injection", "manual"]
       - ["org.apache.commons.io", "FileUtils", True, "deleteQuietly", "(File)", "", "Argument[0]", "path-injection", "manual"]
       - ["org.apache.commons.io", "FileUtils", True, "forceDelete", "(File)", "", "Argument[0]", "path-injection", "manual"]
       - ["org.apache.commons.io", "FileUtils", True, "forceDeleteOnExit", "(File)", "", "Argument[0]", "path-injection", "manual"]
-      - ["org.apache.commons.io", "FileUtils", True, "forceMkdir", "(File)", "", "Argument[0]", "path-injection", "manual"]
+      - ["org.apache.commons.io", "FileUtils", True, "forceMkdirParent", "(File)", "", "Argument[0]", "path-injection", "manual"]
       - ["org.apache.commons.io", "IOUtils", False, "resourceToString", "(String,Charset)", "", "Argument[0]", "path-injection", "ai-manual"]